CosyWall Reviews and Why it is the Best Retrofit Insulation for your Existing Walls
Many older homes were built with little or no wall insulation. This can make them harder to heat in winter, hotter in summer, and less comfortable throughout the year. CosyWall insulation offers a practical way to insulate existing walls without removing the internal linings of your home.
What is CosyWall insulation
CosyWall is a dry fibre glass wool insulation system designed for existing wall cavities. It is blown into the walls through small holes, either from the inside or outside of the home. Once the insulation is installed, the holes are repaired, patched, and made ready for painting.
CosyWall is designed as a high performance wall insulation product. It fills the wall cavity properly and helps reduce heat loss through the walls. This helps keep indoor temperatures more stable, making your home warmer in winter and cooler in summer.
CosyWall is CodeMark certified and comes with a 50 year guarantee. This means the system has been assessed and meets New Zealand building code requirements. It also shows that the insulation is built to last and perform well over time.
This certification gives homeowners peace of mind. It confirms that CosyWall is a durable, long lasting, and quality insulation system. When choosing insulation for your existing walls, it is important to know the product has been tested and approved for use in New Zealand conditions.
Why CosyWall works well in existing homes
Walls are a major part of your home’s insulation system. If your ceiling and underfloor areas are insulated but your walls are empty, your home can still lose heat quickly.
CosyWall helps slow down heat loss, making your home easier to keep warm in winter and cooler in summer. It can also help reduce outside noise, which is useful for homes near roads, neighbours, or busy areas.
At Insultech, our wall insulation process starts with an assessment. We prepare the walls, drill small access holes, blow the insulation into the cavities, then repair the holes so the area is ready for repainting.
CosyWall reviews:
Don’t just trust our thoughts on CosyWall, see what our clients are saying after they have had CosyWall installed in their home:
Amber N
“Highly recommend Francois and the team. We have had them in twice now. We decided to do half the house first and found it made a big difference so got the rest done. The team are very professional, friendly and efficient. Francois even helped us with a different issue we had with our wall, and we are happy with the whole service.”
Matt Jenkins
“Francois and his team provide an excellent service from start to finish. They arrived promptly and worked hard to get our villa fully insulated in good time. The paint job afterwards was flawless; you cannot tell there has been any work done. The insulation itself is very high quality, and we noticed a huge difference from day one. I strongly recommend using this company.”
Mac Lewis
“Francois and the team did a great job insulating our 100 sqm place including all exterior walls and interior walls of the master bedroom. The best price we found, good comms, very accommodating and great quality work. It was very quick as well, getting the whole job finished in a day including plastering and clean up. Would 100% recommend if you are looking for retrofit blown insulation. 10/10!”
These CosyWall reviews show the main reasons homeowners choose retrofit blown wall insulation: comfort, speed, and noticeable results.
Get your walls insulated with CosyWall
If your home feels cold, draughty, or hard to heat, your walls may be part of the problem. CosyWall insulation is a practical way to improve comfort in an existing home without major building work.
Get your walls insulated with CosyWall today and see the difference. Contact the Insultech team to book a quote: